Yuan-Wah Leong, L. Harrison, A. Powell
Apr 10, 1999
Citations
0
Influential Citations
56
Citations
Journal
Phytochemistry
Abstract
Abstract Two new phenanthrenes (4-methoxyphenanthrene-2,3,7-triol and 4-methoxyphenanthrene-2,3,6,7-tetrol) and two new 9,10-dihydrophenanthrenes (5-methoxy-9,10-dihydrophenanthrene-2,3,7-triol and 4-methoxy-9,10-dihydrophenan-threne-2,3,6,7-tetrol), along with the known 4,6-dimethoxyphenanthrene-2,3,7-triol and its 9,10-dihydro derivative, 3,4′,5-trihydroxy-3′-methoxybibenzyl (tristin), dihydroferulic acid, p -coumaric acid, 3,4-dihydroxybenzoic acid and (±)-syringaresinol were isolated from the dichloromethane extract of the orchid Bulbophyllum vaginatum . The structures of these compounds were determined through spectroscopic analysis.